Hadronotus rugiceps Ashmead comb. rev.

Hadronotus rugiceps Ashmead, 1893: 231, 233 (original description, keyed); Brues, 1910: 47 (keyed); Kieffer, 1926: 454, 463 (description, keyed).

Gryon rugiceps (Ashmead): Muesebeck & Masner, 1967: 299 (generic transfer); Masner & Muesebeck, 1968: 36 (type information); Masner, 1983: 134, 155 (description, keyed); Johnson, 1992: 395 (cataloged, type information).